Homework Answers
(a). 4 (15+11+10+13+8+9+5=71; 75-71=4)
(b). 15
(c). 5
(d). 36
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8. In one high school class (75 students) the following information on courses they were enrolled...
A school with 70 students offers three language courses: French, Spanish, and German. 29 students in...
A school with 70 students offers three language courses: French, Spanish, and German. 29 students in total take French, 23 students in total take Spanish, and 22 students in total take German. In addition 9 students in total are taking both French and Spanish, 7 students in total are taking both French and German, and 8 students in total are taking both Spanish and German. Finally, 2 students are taking all three courses. (a) If a student is chosen randomly,...
QUESTION 2 In a survey of 150 NAU students, the following information was obtained: 45 students...
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(5)(3 pts) There are 16 students in a class. Twelve of those students are taking a...
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1. In a high school class of 100 students, 42 studied mathematics, 68 studied psychology, 54...
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In the United States, Scholastic Aptitude Test (SAT) scores are used by universities when selecting students for admission. Private companies and high schools offer SAT preparatory courses to help st...
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(10 points) 6. At Wassamata U, Bullwinkle did a survey of 150 of his fellow graduates....
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1. An elementary school is offering 3 language classes: one in Spanish, one in French, and...
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In a "Probability and Statistics for CS" class with 160 students enrolled in it, by the...
In a "Probability and Statistics for CS" class with 160 students enrolled in it, by the time of the final exam, 60% of the students have mastered discrete probabilities, 75% have mastered continuous probabilities, and 50% have mastered both. For a student to pass the class with at least a C, the student must be able to use at least one type of probabilities. How many students passed the class? (Probability Theory)
Suppose you have two eleventh grade american history classes at a particular high school. One is...
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In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and...
In a high school graduating class of 100 students, 54 studied mathematics, 69 studied history, and 35 studied both mathematics and history. If one of these students is selected at random, find the probability that (a) the student took mathematics or history; (b) the student did not take either of these subjects; (c) the student took history but not mathematics. . . . The probability that a married man watches a certain television show is 0.4, and the probability that...
QUESTION 2 In a survey of 150 NAU students, the following information was obtained: 45 students had taken an Accounting class 40 students had taken an Economics class 29 students had taken a Marketing class 15 students had taken both Accounting and Economics 14 students had taken both Economics and Marketing 22 students had taken both Accounting and Marketing 12 students had taken all three classes a. How many students took an Accounting course and a Marketing course, but not...
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In the United States, Scholastic Aptitude Test (SAT) scores are used by universities when selecting students for admission. Private companies and high schools offer SAT preparatory courses to help students improve their scores. This has led some people to ask, "Do SAT preparatory classes effectively increase SAT scores?" The following study, cited in a major newspaper, claims that they do (but not by a substantial amount): "A new study . . . shows that [SAT preparatory] classes are effective in...
(10 points) 6. At Wassamata U, Bullwinkle did a survey of 150 of his fellow graduates. He found that 64 had taken a math class. 53 a chemistry class, and 60 a physics class. He also found 23 took both math and chemistry, 24 took chemistry and physics, 29 took math and physics while 10 took all 3 of the subjects. Complete the Venn diagram a) Wassamatta U Chemistry Math Physics How many students took only two of the three...
In a "Probability and Statistics for CS" class with 160 students enrolled in it, by the time of the final exam, 60% of the students have mastered discrete probabilities, 75% have mastered continuous probabilities, and 50% have mastered both. For a student to pass the class with at least a C, the student must be able to use at least one type of probabilities. How many students passed the class? (Probability Theory)
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